@charset "UTF-8";
/*
 * colors variables
 */
html, body {
  min-height: 100%;
  height: 100%;
  min-width: 1000px;
  background: #f3f5f7;
}

a {
  color: #2da1e7;
}

a:hover {
  color: #2da1e7;
  text-decoration: none;
}

h1, h2, h3, h4, h5, h6, p {
  padding: 0px;
  margin: 0;
  line-height: 200%;
}

em, i {
  font-style: normal;
}

.cr-pd-mr {
  padding: 0px;
  margin: 0px;
}

.cl-red {
  color: red !important;
}

.cl-orange {
  color: #ff5a2c !important;
}

.ft-cen {
  text-align: center;
}

.more {
  color: #2da1e7;
}

.cl-basics {
  color: #00a4ff;
}

.hv-poin:hover {
  cursor: pointer;
}

.pd-left {
  padding-left: 15px;
}

.pd-rit {
  padding-right: 15px;
}

.btn-primary {
  background: #00a4ff;
  border: none;
}

.cl-boder {
  border: none;
}

.hide {
  display: none;
}

.show {
  display: block;
}

/****
* icon 图标 common
****/
.i-chevron-top {
  display: inline-block;
  width: 13px;
  height: 10px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -83px 2px;
}

.i-chevron-bot {
  display: inline-block;
  width: 13px;
  height: 10px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -83px -6px;
}

.i-heart {
  display: inline-block;
  width: 20px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -104px 0px;
}

.i-star {
  display: inline-block;
  width: 14px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -57px 0px;
}

.i-weixin {
  display: inline-block;
  width: 18px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 0px 1px;
}

.i-qq {
  display: inline-block;
  width: 18px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -26px 0px;
}

.i-answer {
  display: inline-block;
  width: 16px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -133px 0px;
}

.i-browse {
  display: inline-block;
  width: 15px;
  height: 12px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 0px -20px;
}

.i-problem {
  display: inline-block;
  width: 23px;
  height: 19px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -133px -21px;
}

.i-node {
  display: inline-block;
  width: 23px;
  height: 19px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -102px -21px;
}

.i-edt {
  display: inline-block;
  width: 16px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -22px -19px;
}

.i-del {
  display: inline-block;
  width: 15px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -43px -19px;
}

.i-laud {
  display: inline-block;
  width: 15px;
  height: 15px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -64px -19px;
}

.i-coll {
  display: inline-block;
  width: 15px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 1px -35px;
}

.i-play {
  display: inline-block;
  width: 14px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -22px -35px;
  margin-right: 8px;
}

/*
 * colors variables
 */
html, body {
  min-height: 100%;
  height: 100%;
  min-width: 1000px;
  background: #f3f5f7;
}

a {
  color: #2da1e7;
}

a:hover {
  color: #2da1e7;
  text-decoration: none;
}

h1, h2, h3, h4, h5, h6, p {
  padding: 0px;
  margin: 0;
  line-height: 200%;
}

em, i {
  font-style: normal;
}

.cr-pd-mr {
  padding: 0px;
  margin: 0px;
}

.cl-red {
  color: red !important;
}

.cl-orange {
  color: #ff5a2c !important;
}

.ft-cen {
  text-align: center;
}

.more {
  color: #2da1e7;
}

.cl-basics {
  color: #00a4ff;
}

.hv-poin:hover {
  cursor: pointer;
}

.pd-left {
  padding-left: 15px;
}

.pd-rit {
  padding-right: 15px;
}

.btn-primary {
  background: #00a4ff;
  border: none;
}

.cl-boder {
  border: none;
}

.hide {
  display: none;
}

.show {
  display: block;
}

/****
* icon 图标 common
****/
.i-chevron-top {
  display: inline-block;
  width: 13px;
  height: 10px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -83px 2px;
}

.i-chevron-bot {
  display: inline-block;
  width: 13px;
  height: 10px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -83px -6px;
}

.i-heart {
  display: inline-block;
  width: 20px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -104px 0px;
}

.i-star {
  display: inline-block;
  width: 14px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -57px 0px;
}

.i-weixin {
  display: inline-block;
  width: 18px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 0px 1px;
}

.i-qq {
  display: inline-block;
  width: 18px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -26px 0px;
}

.i-answer {
  display: inline-block;
  width: 16px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -133px 0px;
}

.i-browse {
  display: inline-block;
  width: 15px;
  height: 12px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 0px -20px;
}

.i-problem {
  display: inline-block;
  width: 23px;
  height: 19px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -133px -21px;
}

.i-node {
  display: inline-block;
  width: 23px;
  height: 19px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -102px -21px;
}

.i-edt {
  display: inline-block;
  width: 16px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -22px -19px;
}

.i-del {
  display: inline-block;
  width: 15px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -43px -19px;
}

.i-laud {
  display: inline-block;
  width: 15px;
  height: 15px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -64px -19px;
}

.i-coll {
  display: inline-block;
  width: 15px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 1px -35px;
}

.i-play {
  display: inline-block;
  width: 14px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -22px -35px;
  margin-right: 8px;
}

/*
 * colors variables
 */
html, body {
  min-height: 100%;
  height: 100%;
  min-width: 1000px;
  background: #f3f5f7;
}

a {
  color: #2da1e7;
}

a:hover {
  color: #2da1e7;
  text-decoration: none;
}

h1, h2, h3, h4, h5, h6, p {
  padding: 0px;
  margin: 0;
  line-height: 200%;
}

em, i {
  font-style: normal;
}

.cr-pd-mr {
  padding: 0px;
  margin: 0px;
}

.cl-red {
  color: red !important;
}

.cl-orange {
  color: #ff5a2c !important;
}

.ft-cen {
  text-align: center;
}

.more {
  color: #2da1e7;
}

.cl-basics {
  color: #00a4ff;
}

.hv-poin:hover {
  cursor: pointer;
}

.pd-left {
  padding-left: 15px;
}

.pd-rit {
  padding-right: 15px;
}

.btn-primary {
  background: #00a4ff;
  border: none;
}

.cl-boder {
  border: none;
}

.hide {
  display: none;
}

.show {
  display: block;
}

/****
* icon 图标 common
****/
.i-chevron-top {
  display: inline-block;
  width: 13px;
  height: 10px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -83px 2px;
}

.i-chevron-bot {
  display: inline-block;
  width: 13px;
  height: 10px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -83px -6px;
}

.i-heart {
  display: inline-block;
  width: 20px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -104px 0px;
}

.i-star {
  display: inline-block;
  width: 14px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -57px 0px;
}

.i-weixin {
  display: inline-block;
  width: 18px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 0px 1px;
}

.i-qq {
  display: inline-block;
  width: 18px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -26px 0px;
}

.i-answer {
  display: inline-block;
  width: 16px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -133px 0px;
}

.i-browse {
  display: inline-block;
  width: 15px;
  height: 12px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 0px -20px;
}

.i-problem {
  display: inline-block;
  width: 23px;
  height: 19px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -133px -21px;
}

.i-node {
  display: inline-block;
  width: 23px;
  height: 19px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -102px -21px;
}

.i-edt {
  display: inline-block;
  width: 16px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -22px -19px;
}

.i-del {
  display: inline-block;
  width: 15px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -43px -19px;
}

.i-laud {
  display: inline-block;
  width: 15px;
  height: 15px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -64px -19px;
}

.i-coll {
  display: inline-block;
  width: 15px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 1px -35px;
}

.i-play {
  display: inline-block;
  width: 14px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -22px -35px;
  margin-right: 8px;
}

.course-weeklist {
  height: 100%;
  position: absolute;
  left: 0px;
  top: 0px;
  width: 380px;
  background: #14191f;
}

.course-weeklist .tit {
  padding: 0 15px;
  line-height: 50px;
  font-size: 20px;
  border-bottom: solid 1px #333;
  background: #14191f;
  color: #999;
  margin-bottom: 10px;
}

.course-weeklist .tit i:before {
  position: relative;
  top: 11px;
}

.course-weeklist .nav-stacked {
  color: #999;
}

.course-weeklist .nav-stacked li {
  padding: 10px 15px;
  font-size: 14px;
}

.course-weeklist .nav-stacked li i {
  color: #00a4ff;
  margin-right: 5px;
}

.course-weeklist .nav-stacked li span {
  border: solid 1px #f07700;
  color: #f07700;
  padding: 2px;
  font-size: 12px;
}

.course-weeklist .course-nav {
  position: absolute;
  width: 54px;
  top: 20%;
  left: -55px;
  z-index: 11;
}

.course-weeklist .course-nav li {
  list-style: none;
  background: #363c40;
  padding: 0px;
}

.course-weeklist .course-nav li span {
  border: none;
  padding: 0;
  color: inherit;
}

.course-weeklist .course-nav li:hover, .course-weeklist .course-nav a:hover {
  background: #00a4ff;
}

.course-weeklist .course-nav li:hover a, .course-weeklist .course-nav a:hover a {
  color: #fff;
}

.course-weeklist .course-nav a {
  color: #999;
  font-size: 16px;
  padding: 15px;
  text-decoration: none;
  text-align: center;
}

.course-weeklist .course-nav a span {
  font-size: 12px;
}

.course-weeklist .course-nav a::before {
  display: block;
}

.course-weeklist .course-nav .active a {
  color: #fff;
}

/*
 * colors variables
 */
html, body {
  min-height: 100%;
  height: 100%;
  min-width: 1000px;
  background: #f3f5f7;
}

a {
  color: #2da1e7;
}

a:hover {
  color: #2da1e7;
  text-decoration: none;
}

h1, h2, h3, h4, h5, h6, p {
  padding: 0px;
  margin: 0;
  line-height: 200%;
}

em, i {
  font-style: normal;
}

.cr-pd-mr {
  padding: 0px;
  margin: 0px;
}

.cl-red {
  color: red !important;
}

.cl-orange {
  color: #ff5a2c !important;
}

.ft-cen {
  text-align: center;
}

.more {
  color: #2da1e7;
}

.cl-basics {
  color: #00a4ff;
}

.hv-poin:hover {
  cursor: pointer;
}

.pd-left {
  padding-left: 15px;
}

.pd-rit {
  padding-right: 15px;
}

.btn-primary {
  background: #00a4ff;
  border: none;
}

.cl-boder {
  border: none;
}

.hide {
  display: none;
}

.show {
  display: block;
}

/****
* icon 图标 common
****/
.i-chevron-top {
  display: inline-block;
  width: 13px;
  height: 10px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -83px 2px;
}

.i-chevron-bot {
  display: inline-block;
  width: 13px;
  height: 10px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -83px -6px;
}

.i-heart {
  display: inline-block;
  width: 20px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -104px 0px;
}

.i-star {
  display: inline-block;
  width: 14px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -57px 0px;
}

.i-weixin {
  display: inline-block;
  width: 18px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 0px 1px;
}

.i-qq {
  display: inline-block;
  width: 18px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -26px 0px;
}

.i-answer {
  display: inline-block;
  width: 16px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -133px 0px;
}

.i-browse {
  display: inline-block;
  width: 15px;
  height: 12px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 0px -20px;
}

.i-problem {
  display: inline-block;
  width: 23px;
  height: 19px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -133px -21px;
}

.i-node {
  display: inline-block;
  width: 23px;
  height: 19px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -102px -21px;
}

.i-edt {
  display: inline-block;
  width: 16px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -22px -19px;
}

.i-del {
  display: inline-block;
  width: 15px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -43px -19px;
}

.i-laud {
  display: inline-block;
  width: 15px;
  height: 15px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -64px -19px;
}

.i-coll {
  display: inline-block;
  width: 15px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 1px -35px;
}

.i-play {
  display: inline-block;
  width: 14px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -22px -35px;
  margin-right: 8px;
}

/*
 * colors variables
 */
html, body {
  min-height: 100%;
  height: 100%;
  min-width: 1000px;
  background: #f3f5f7;
}

a {
  color: #2da1e7;
}

a:hover {
  color: #2da1e7;
  text-decoration: none;
}

h1, h2, h3, h4, h5, h6, p {
  padding: 0px;
  margin: 0;
  line-height: 200%;
}

em, i {
  font-style: normal;
}

.cr-pd-mr {
  padding: 0px;
  margin: 0px;
}

.cl-red {
  color: red !important;
}

.cl-orange {
  color: #ff5a2c !important;
}

.ft-cen {
  text-align: center;
}

.more {
  color: #2da1e7;
}

.cl-basics {
  color: #00a4ff;
}

.hv-poin:hover {
  cursor: pointer;
}

.pd-left {
  padding-left: 15px;
}

.pd-rit {
  padding-right: 15px;
}

.btn-primary {
  background: #00a4ff;
  border: none;
}

.cl-boder {
  border: none;
}

.hide {
  display: none;
}

.show {
  display: block;
}

/****
* icon 图标 common
****/
.i-chevron-top {
  display: inline-block;
  width: 13px;
  height: 10px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -83px 2px;
}

.i-chevron-bot {
  display: inline-block;
  width: 13px;
  height: 10px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -83px -6px;
}

.i-heart {
  display: inline-block;
  width: 20px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -104px 0px;
}

.i-star {
  display: inline-block;
  width: 14px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -57px 0px;
}

.i-weixin {
  display: inline-block;
  width: 18px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 0px 1px;
}

.i-qq {
  display: inline-block;
  width: 18px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -26px 0px;
}

.i-answer {
  display: inline-block;
  width: 16px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -133px 0px;
}

.i-browse {
  display: inline-block;
  width: 15px;
  height: 12px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 0px -20px;
}

.i-problem {
  display: inline-block;
  width: 23px;
  height: 19px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -133px -21px;
}

.i-node {
  display: inline-block;
  width: 23px;
  height: 19px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -102px -21px;
}

.i-edt {
  display: inline-block;
  width: 16px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -22px -19px;
}

.i-del {
  display: inline-block;
  width: 15px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -43px -19px;
}

.i-laud {
  display: inline-block;
  width: 15px;
  height: 15px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -64px -19px;
}

.i-coll {
  display: inline-block;
  width: 15px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 1px -35px;
}

.i-play {
  display: inline-block;
  width: 14px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -22px -35px;
  margin-right: 8px;
}

.article-subtitle-cont {
  background: #fff;
  padding: 15px;
  padding-bottom: 50px;
}

/*
 * colors variables
 */
html, body {
  min-height: 100%;
  height: 100%;
  min-width: 1000px;
  background: #f3f5f7;
}

a {
  color: #2da1e7;
}

a:hover {
  color: #2da1e7;
  text-decoration: none;
}

h1, h2, h3, h4, h5, h6, p {
  padding: 0px;
  margin: 0;
  line-height: 200%;
}

em, i {
  font-style: normal;
}

.cr-pd-mr {
  padding: 0px;
  margin: 0px;
}

.cl-red {
  color: red !important;
}

.cl-orange {
  color: #ff5a2c !important;
}

.ft-cen {
  text-align: center;
}

.more {
  color: #2da1e7;
}

.cl-basics {
  color: #00a4ff;
}

.hv-poin:hover {
  cursor: pointer;
}

.pd-left {
  padding-left: 15px;
}

.pd-rit {
  padding-right: 15px;
}

.btn-primary {
  background: #00a4ff;
  border: none;
}

.cl-boder {
  border: none;
}

.hide {
  display: none;
}

.show {
  display: block;
}

/****
* icon 图标 common
****/
.i-chevron-top {
  display: inline-block;
  width: 13px;
  height: 10px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -83px 2px;
}

.i-chevron-bot {
  display: inline-block;
  width: 13px;
  height: 10px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -83px -6px;
}

.i-heart {
  display: inline-block;
  width: 20px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -104px 0px;
}

.i-star {
  display: inline-block;
  width: 14px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -57px 0px;
}

.i-weixin {
  display: inline-block;
  width: 18px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 0px 1px;
}

.i-qq {
  display: inline-block;
  width: 18px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -26px 0px;
}

.i-answer {
  display: inline-block;
  width: 16px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -133px 0px;
}

.i-browse {
  display: inline-block;
  width: 15px;
  height: 12px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 0px -20px;
}

.i-problem {
  display: inline-block;
  width: 23px;
  height: 19px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -133px -21px;
}

.i-node {
  display: inline-block;
  width: 23px;
  height: 19px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -102px -21px;
}

.i-edt {
  display: inline-block;
  width: 16px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -22px -19px;
}

.i-del {
  display: inline-block;
  width: 15px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -43px -19px;
}

.i-laud {
  display: inline-block;
  width: 15px;
  height: 15px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -64px -19px;
}

.i-coll {
  display: inline-block;
  width: 15px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 1px -35px;
}

.i-play {
  display: inline-block;
  width: 14px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -22px -35px;
  margin-right: 8px;
}

.article-cont-note {
  width: 100%;
  max-width: 1170px;
  margin: 0 auto;
  overflow: hidden;
}

.article-cont-note .article-left-box {
  width: 75%;
  float: left;
}

.article-cont-note .article-left-box .tit-list {
  font-size: 16px;
  margin: 20px 0;
}

.article-cont-note .article-left-box .tit-list a {
  cursor: pointer;
  display: inline-block;
  padding: 10px 20px;
  color: #787d82;
  text-decoration: none;
}

.article-cont-note .article-left-box .tit-list a:hover {
  color: #00a4ff;
}

.article-cont-note .article-left-box .tit-list .active {
  color: #00a4ff;
}

.article-cont-note .article-left-box .content .content-title {
  margin-bottom: 10px;
  background: #fff;
  padding: 20px 30px 20px 30px;
  color: #787d82;
}

.article-cont-note .article-left-box .content .content-title a {
  color: #787d82;
  display: inline-block;
  line-height: 24px;
  padding: 0px 10px;
  margin: 5px 5px;
  text-decoration: none;
}

.article-cont-note .article-left-box .content .content-title p {
  position: relative;
}

.article-cont-note .article-left-box .content .content-title p:first-child {
  border-bottom: solid 1px #dadada;
  padding-bottom: 15px;
}

.article-cont-note .article-left-box .content .content-title p:last-child {
  padding-top: 15px;
}

.article-cont-note .article-left-box .content .content-title .more {
  position: absolute;
  right: 0px;
  top: 20px;
  text-decoration: none;
  color: #00a4ff;
  font-size: 12px;
  padding: 0px;
  margin: 0px;
}

.article-cont-note .article-left-box .content .content-title .all {
  margin-left: 0px;
  font-size: 14px;
  color: #fff;
  background: #00a4ff;
}

.article-cont-note .article-left-box .content .item {
  background: #fff;
  margin-bottom: 10px;
  font-size: 16px;
  color: #050505;
  padding: 30px;
  overflow: hidden;
}

.article-cont-note .article-left-box .content .item .item-left {
  float: left;
  width: 15%;
  max-width: 170px;
  color: #0077cc;
  text-align: center;
}

.article-cont-note .article-left-box .content .item .item-left img {
  border-radius: 50%;
}

.article-cont-note .article-left-box .content .item .item-right {
  width: 80%;
  float: left;
  position: relative;
}

.article-cont-note .article-left-box .content .item .item-right .video-time {
  color: #0077cc;
  position: absolute;
  top: 0px;
  right: 0px;
}

.article-cont-note .article-left-box .content .item .item-right p:nth-child(1) {
  color: #787d82;
  font-size: 14px;
}

.article-cont-note .article-left-box .content .item .item-right p:nth-child(1) span {
  padding: 0px 20px;
  display: inline-block;
  color: #00a4ff;
  border: solid 1px #00a4ff;
  margin: 5px 0;
}

.article-cont-note .article-left-box .content .item .item-right p:nth-child(1) .new {
  color: #0077cc;
}

.article-cont-note .article-left-box .content .item .item-right .action-box {
  position: relative;
  font-size: 12px;
  margin-top: 10px;
  color: #787d82;
}

.article-cont-note .article-left-box .content .item .item-right .action-box .active-box {
  position: absolute;
  right: 0px;
  top: 0px;
}

.article-cont-note .article-left-box .content .item .item-right .action-box .active-box span {
  cursor: pointer;
  margin: 0 10px;
}

.article-cont-note .article-left-box .content .item .item-right .action-box .active-box span i {
  margin: 0 7px;
  position: relative;
  top: 2px;
}

.article-cont-note .article-left-box .content .itemlast {
  background: #fff;
  padding: 7px 20px;
  text-align: center;
}

.article-cont-note .article-left-box .content .itemlast .overwrite {
  padding: 0px;
}

.article-cont-note .article-right-box {
  width: 24%;
  float: right;
}

.article-cont-note .article-right-box .question-butte {
  background: #00a4ff;
  color: #fff;
  font-size: 18px;
  margin-bottom: 10px;
  text-align: center;
  padding: 8px 0;
}

.article-cont-note .article-right-box .question-butte i {
  position: relative;
  top: 3px;
  margin-right: 7px;
}

.article-cont-note .article-right-box .about-teach {
  background: #fff;
  padding: 20px;
}

.article-cont-note .article-right-box .about-teach .teach-info {
  overflow: hidden;
}

.article-cont-note .article-right-box .about-teach .teach-info img {
  float: left;
  margin-right: 10px;
}

.article-cont-note .article-right-box .about-teach .teach-info span {
  font-size: 16px;
}

.article-cont-note .article-right-box .about-teach .teach-info .about {
  text-align: left;
  line-height: 24px;
  margin-top: 5px;
  color: #5f1898;
}

.article-cont-note .article-right-box .about-teach p:nth-child(2) {
  text-align: center;
  padding: 10px 0;
}

.article-cont-note .article-right-box .about-teach p:nth-child(2) a {
  display: inline-block;
  width: 100%;
  background: #00a4ff;
  color: #fff;
}

.article-cont-note .article-right-box .about-teach .synopsis {
  color: #787d82;
}

.article-cont-note .article-right-box .learing-box .tit {
  font-size: 18px;
  color: #00a4ff;
  padding: 20px;
}

.article-cont-note .article-right-box .learing-box .item-box {
  background: #fff;
}

.article-cont-note .article-right-box .learing-box .item-box .item-list {
  overflow: hidden;
  height: 50px;
  border-bottom: solid 1px #bdbdbd;
}

.article-cont-note .article-right-box .learing-box .item-box .item-list a {
  color: #050505;
  padding: 0 20px;
  display: block;
  line-height: 50px;
}

.article-cont-note .article-right-box .learing-box .item-box .item-list a:last-child {
  border: none;
}

.article-cont-note .article-right-box .learing-box .item-box .item-list .infobox {
  position: relative;
  top: -140px;
}

.article-cont-note .article-right-box .learing-box .item-box .item-list .morebox {
  background: url(http://www.51xuecheng.cn/static/img/widget-titBg.png) no-repeat;
  background-size: cover;
  text-align: center;
  color: #fff;
}

.article-cont-note .article-right-box .learing-box .item-box .item-list .morebox .top-tit {
  font-size: 22px;
  padding-top: 20px;
  font-weight: bold;
}

.article-cont-note .article-right-box .learing-box .item-box .item-list .morebox .top-lab {
  font-size: 16px;
  margin-bottom: 10px;
}

.article-cont-note .article-right-box .learing-box .item-box .item-list .morebox .top-num {
  font-size: 14px;
  text-align: left;
  position: relative;
  padding: 0 20px;
  background: rgba(0, 0, 0, 0.5);
  line-height: 34px;
}

.article-cont-note .article-right-box .learing-box .item-box .item-list .morebox .top-num span {
  position: absolute;
  right: 20px;
  top: 0px;
}

.article-cont-note .article-right-box .learing-box .item-box .hov {
  height: 140px;
}

.article-cont-note .article-right-box .learing-box .item-box .hov .infobox {
  top: 0px;
  transition: 800ms;
}

.article-cont-note .article-right-box .learing-box .item-box .hov a {
  display: none;
}

/*
 * colors variables
 */
html, body {
  min-height: 100%;
  height: 100%;
  min-width: 1000px;
  background: #f3f5f7;
}

a {
  color: #2da1e7;
}

a:hover {
  color: #2da1e7;
  text-decoration: none;
}

h1, h2, h3, h4, h5, h6, p {
  padding: 0px;
  margin: 0;
  line-height: 200%;
}

em, i {
  font-style: normal;
}

.cr-pd-mr {
  padding: 0px;
  margin: 0px;
}

.cl-red {
  color: red !important;
}

.cl-orange {
  color: #ff5a2c !important;
}

.ft-cen {
  text-align: center;
}

.more {
  color: #2da1e7;
}

.cl-basics {
  color: #00a4ff;
}

.hv-poin:hover {
  cursor: pointer;
}

.pd-left {
  padding-left: 15px;
}

.pd-rit {
  padding-right: 15px;
}

.btn-primary {
  background: #00a4ff;
  border: none;
}

.cl-boder {
  border: none;
}

.hide {
  display: none;
}

.show {
  display: block;
}

/****
* icon 图标 common
****/
.i-chevron-top {
  display: inline-block;
  width: 13px;
  height: 10px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -83px 2px;
}

.i-chevron-bot {
  display: inline-block;
  width: 13px;
  height: 10px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -83px -6px;
}

.i-heart {
  display: inline-block;
  width: 20px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -104px 0px;
}

.i-star {
  display: inline-block;
  width: 14px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -57px 0px;
}

.i-weixin {
  display: inline-block;
  width: 18px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 0px 1px;
}

.i-qq {
  display: inline-block;
  width: 18px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -26px 0px;
}

.i-answer {
  display: inline-block;
  width: 16px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -133px 0px;
}

.i-browse {
  display: inline-block;
  width: 15px;
  height: 12px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 0px -20px;
}

.i-problem {
  display: inline-block;
  width: 23px;
  height: 19px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -133px -21px;
}

.i-node {
  display: inline-block;
  width: 23px;
  height: 19px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -102px -21px;
}

.i-edt {
  display: inline-block;
  width: 16px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -22px -19px;
}

.i-del {
  display: inline-block;
  width: 15px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -43px -19px;
}

.i-laud {
  display: inline-block;
  width: 15px;
  height: 15px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -64px -19px;
}

.i-coll {
  display: inline-block;
  width: 15px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 1px -35px;
}

.i-play {
  display: inline-block;
  width: 14px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -22px -35px;
  margin-right: 8px;
}

.article-cont-ask {
  width: 100%;
  max-width: 1170px;
  margin: 0 auto;
  overflow: hidden;
}

.article-cont-ask .article-left-box {
  width: 75%;
  float: left;
}

.article-cont-ask .article-left-box .tit-list {
  font-size: 16px;
  margin: 20px 0;
}

.article-cont-ask .article-left-box .tit-list a {
  cursor: pointer;
  display: inline-block;
  padding: 10px 20px;
  color: #787d82;
  text-decoration: none;
}

.article-cont-ask .article-left-box .tit-list a:hover {
  color: #00a4ff;
}

.article-cont-ask .article-left-box .tit-list .active {
  color: #00a4ff;
}

.article-cont-ask .article-left-box .content .content-title {
  margin-bottom: 10px;
  background: #fff;
  padding: 20px 30px 20px 30px;
  color: #787d82;
}

.article-cont-ask .article-left-box .content .content-title a {
  color: #787d82;
  display: inline-block;
  line-height: 24px;
  padding: 0px 10px;
  margin: 5px 5px;
  text-decoration: none;
}

.article-cont-ask .article-left-box .content .content-title p {
  position: relative;
}

.article-cont-ask .article-left-box .content .content-title p:first-child {
  border-bottom: solid 1px #dadada;
  padding-bottom: 15px;
}

.article-cont-ask .article-left-box .content .content-title p:last-child {
  padding-top: 15px;
}

.article-cont-ask .article-left-box .content .content-title .more {
  position: absolute;
  right: 0px;
  top: 20px;
  text-decoration: none;
  color: #00a4ff;
  font-size: 12px;
  padding: 0px;
  margin: 0px;
}

.article-cont-ask .article-left-box .content .content-title .all {
  margin-left: 0px;
  font-size: 14px;
  color: #fff;
  background: #00a4ff;
}

.article-cont-ask .article-left-box .content .item {
  background: #fff;
  margin-bottom: 10px;
  font-size: 16px;
  color: #050505;
  padding: 30px;
  overflow: hidden;
}

.article-cont-ask .article-left-box .content .item .item-left {
  float: left;
  width: 15%;
  max-width: 170px;
  color: #0077cc;
  text-align: center;
}

.article-cont-ask .article-left-box .content .item .item-left img {
  border-radius: 50%;
}

.article-cont-ask .article-left-box .content .item .item-right {
  width: 80%;
  float: left;
}

.article-cont-ask .article-left-box .content .item .item-right p:nth-child(2) {
  color: #787d82;
  font-size: 14px;
}

.article-cont-ask .article-left-box .content .item .item-right p:nth-child(2) span {
  padding: 0px 20px;
  display: inline-block;
  color: #00a4ff;
  border: solid 1px #00a4ff;
  margin: 5px 0;
}

.article-cont-ask .article-left-box .content .item .item-right p:nth-child(2) .new {
  color: #0077cc;
}

.article-cont-ask .article-left-box .content .item .item-right p:nth-child(3) {
  position: relative;
  font-size: 12px;
  margin-top: 10px;
  color: #787d82;
}

.article-cont-ask .article-left-box .content .item .item-right p:nth-child(3) .action-box {
  position: absolute;
  right: 0px;
  top: 0px;
}

.article-cont-ask .article-left-box .content .item .item-right p:nth-child(3) .action-box span {
  margin: 0 10px;
}

.article-cont-ask .article-left-box .content .item .item-right p:nth-child(3) .action-box span i {
  margin: 0 7px;
  position: relative;
  top: 2px;
}

.article-cont-ask .article-left-box .content .itemlast {
  background: #fff;
  padding: 7px 20px;
  text-align: center;
}

.article-cont-ask .article-left-box .content .itemlast .overwrite {
  padding: 0px;
}

.article-cont-ask .article-right-box {
  width: 24%;
  float: right;
}

.article-cont-ask .article-right-box .question-butte {
  background: #00a4ff;
  color: #fff;
  font-size: 18px;
  margin-bottom: 10px;
  text-align: center;
  padding: 8px 0;
}

.article-cont-ask .article-right-box .question-butte i {
  position: relative;
  top: 3px;
  margin-right: 7px;
}

.article-cont-ask .article-right-box .about-teach {
  background: #fff;
  padding: 20px;
}

.article-cont-ask .article-right-box .about-teach .teach-info {
  overflow: hidden;
}

.article-cont-ask .article-right-box .about-teach .teach-info img {
  float: left;
  margin-right: 10px;
}

.article-cont-ask .article-right-box .about-teach .teach-info span {
  font-size: 16px;
}

.article-cont-ask .article-right-box .about-teach .teach-info .about {
  text-align: left;
  line-height: 24px;
  margin-top: 5px;
  color: #5f1898;
}

.article-cont-ask .article-right-box .about-teach p:nth-child(2) {
  text-align: center;
  padding: 10px 0;
}

.article-cont-ask .article-right-box .about-teach p:nth-child(2) a {
  display: inline-block;
  width: 100%;
  background: #00a4ff;
  color: #fff;
}

.article-cont-ask .article-right-box .about-teach .synopsis {
  color: #787d82;
}

.article-cont-ask .article-right-box .learing-box .tit {
  font-size: 18px;
  color: #00a4ff;
  padding: 20px;
}

.article-cont-ask .article-right-box .learing-box .item-box {
  background: #fff;
}

.article-cont-ask .article-right-box .learing-box .item-box .item-list {
  overflow: hidden;
  height: 50px;
  border-bottom: solid 1px #bdbdbd;
}

.article-cont-ask .article-right-box .learing-box .item-box .item-list a {
  color: #050505;
  padding: 0 20px;
  display: block;
  line-height: 50px;
}

.article-cont-ask .article-right-box .learing-box .item-box .item-list a:last-child {
  border: none;
}

.article-cont-ask .article-right-box .learing-box .item-box .item-list .infobox {
  position: relative;
  top: -140px;
}

.article-cont-ask .article-right-box .learing-box .item-box .item-list .morebox {
  background: url(http://www.51xuecheng.cn/static/img/widget-titBg.png) no-repeat;
  background-size: cover;
  text-align: center;
  color: #fff;
}

.article-cont-ask .article-right-box .learing-box .item-box .item-list .morebox .top-tit {
  font-size: 22px;
  padding-top: 20px;
  font-weight: bold;
}

.article-cont-ask .article-right-box .learing-box .item-box .item-list .morebox .top-lab {
  font-size: 16px;
  margin-bottom: 10px;
}

.article-cont-ask .article-right-box .learing-box .item-box .item-list .morebox .top-num {
  font-size: 14px;
  text-align: left;
  position: relative;
  padding: 0 20px;
  background: rgba(0, 0, 0, 0.5);
  line-height: 34px;
}

.article-cont-ask .article-right-box .learing-box .item-box .item-list .morebox .top-num span {
  position: absolute;
  right: 20px;
  top: 0px;
}

.article-cont-ask .article-right-box .learing-box .item-box .hov {
  height: 140px;
}

.article-cont-ask .article-right-box .learing-box .item-box .hov .infobox {
  top: 0px;
  transition: 800ms;
}

.article-cont-ask .article-right-box .learing-box .item-box .hov a {
  display: none;
}

/*
 * colors variables
 */
html, body {
  min-height: 100%;
  height: 100%;
  min-width: 1000px;
  background: #f3f5f7;
}

a {
  color: #2da1e7;
}

a:hover {
  color: #2da1e7;
  text-decoration: none;
}

h1, h2, h3, h4, h5, h6, p {
  padding: 0px;
  margin: 0;
  line-height: 200%;
}

em, i {
  font-style: normal;
}

.cr-pd-mr {
  padding: 0px;
  margin: 0px;
}

.cl-red {
  color: red !important;
}

.cl-orange {
  color: #ff5a2c !important;
}

.ft-cen {
  text-align: center;
}

.more {
  color: #2da1e7;
}

.cl-basics {
  color: #00a4ff;
}

.hv-poin:hover {
  cursor: pointer;
}

.pd-left {
  padding-left: 15px;
}

.pd-rit {
  padding-right: 15px;
}

.btn-primary {
  background: #00a4ff;
  border: none;
}

.cl-boder {
  border: none;
}

.hide {
  display: none;
}

.show {
  display: block;
}

/****
* icon 图标 common
****/
.i-chevron-top {
  display: inline-block;
  width: 13px;
  height: 10px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -83px 2px;
}

.i-chevron-bot {
  display: inline-block;
  width: 13px;
  height: 10px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -83px -6px;
}

.i-heart {
  display: inline-block;
  width: 20px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -104px 0px;
}

.i-star {
  display: inline-block;
  width: 14px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -57px 0px;
}

.i-weixin {
  display: inline-block;
  width: 18px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 0px 1px;
}

.i-qq {
  display: inline-block;
  width: 18px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -26px 0px;
}

.i-answer {
  display: inline-block;
  width: 16px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -133px 0px;
}

.i-browse {
  display: inline-block;
  width: 15px;
  height: 12px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 0px -20px;
}

.i-problem {
  display: inline-block;
  width: 23px;
  height: 19px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -133px -21px;
}

.i-node {
  display: inline-block;
  width: 23px;
  height: 19px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -102px -21px;
}

.i-edt {
  display: inline-block;
  width: 16px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -22px -19px;
}

.i-del {
  display: inline-block;
  width: 15px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -43px -19px;
}

.i-laud {
  display: inline-block;
  width: 15px;
  height: 15px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -64px -19px;
}

.i-coll {
  display: inline-block;
  width: 15px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 1px -35px;
}

.i-play {
  display: inline-block;
  width: 14px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -22px -35px;
  margin-right: 8px;
}

.article-cont-code {
  width: 100%;
  max-width: 1170px;
  margin: 0 auto;
  overflow: hidden;
}

.article-cont-code .article-left-box {
  width: 75%;
  float: left;
}

.article-cont-code .article-left-box .tit-list {
  font-size: 16px;
  margin: 20px 0;
}

.article-cont-code .article-left-box .tit-list a {
  cursor: pointer;
  display: inline-block;
  padding: 10px 20px;
  color: #787d82;
  text-decoration: none;
}

.article-cont-code .article-left-box .tit-list a:hover {
  color: #00a4ff;
}

.article-cont-code .article-left-box .tit-list .active {
  color: #00a4ff;
}

.article-cont-code .article-left-box .content .content-title {
  margin-bottom: 10px;
  background: #fff;
  padding: 20px 30px 20px 30px;
  color: #787d82;
}

.article-cont-code .article-left-box .content .content-title a {
  color: #787d82;
  display: inline-block;
  line-height: 24px;
  padding: 0px 10px;
  margin: 5px 5px;
  text-decoration: none;
}

.article-cont-code .article-left-box .content .content-title p {
  position: relative;
}

.article-cont-code .article-left-box .content .content-title .more {
  position: absolute;
  right: 0px;
  top: 20px;
  text-decoration: none;
  color: #00a4ff;
  font-size: 12px;
  padding: 0px;
  margin: 0px;
}

.article-cont-code .article-left-box .content .content-title .all {
  margin-left: 0px;
  font-size: 14px;
  color: #fff;
  background: #00a4ff;
}

.article-cont-code .article-left-box .content .item {
  background: #fff;
  margin-bottom: 10px;
  font-size: 16px;
  color: #050505;
  padding: 20px 30px 20px 30px;
  overflow: hidden;
}

.article-cont-code .article-left-box .content .item .item-left {
  float: left;
  width: 100%;
  color: #0077cc;
  text-align: left;
  position: relative;
}

.article-cont-code .article-left-box .content .item .item-left .touxiang {
  border-radius: 50%;
}

.article-cont-code .article-left-box .content .item .item-left .name {
  padding: 0 10px;
}

.article-cont-code .article-left-box .content .item .item-left .action-info {
  display: inline-block;
  position: absolute;
  color: #787d82;
  right: 0px;
  top: 20px;
}

.article-cont-code .article-left-box .content .item .item-left .action-info .action {
  margin-left: 15px;
  font-size: 14px;
}

.article-cont-code .article-left-box .content .item .item-left .action-info .action span {
  margin: 0 10px;
}

.article-cont-code .article-left-box .content .item .item-left .action-info .action span i {
  margin: 0 7px;
  position: relative;
  top: 2px;
}

.article-cont-code .article-left-box .content .item .item-left pre {
  height: 0px;
  padding: 0px;
  margin: 0;
  border: none;
  overflow: hidden;
}

.article-cont-code .article-left-box .content .item .item-left .mask {
  display: none;
  position: fixed;
  top: 0px;
  left: 0px;
  z-index: 998;
  width: 100%;
  height: 100%;
  background: #000;
  opacity: 0.5;
}

.article-cont-code .article-left-box .content .item .item-left .code-pop {
  height: 80%;
  z-index: 999;
  overflow: auto;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80%;
  max-width: 1199px;
}

.article-cont-code .article-left-box .content .item .item-left .video-time {
  color: #0077cc;
  position: absolute;
  top: 0px;
  right: 0px;
}

.article-cont-code .article-left-box .content .itemlast {
  background: #fff;
  padding: 7px 20px;
  text-align: center;
}

.article-cont-code .article-left-box .content .itemlast .overwrite {
  padding: 0px;
}

.article-cont-code .article-right-box {
  width: 24%;
  float: right;
}

.article-cont-code .article-right-box .question-butte {
  background: #00a4ff;
  color: #fff;
  font-size: 18px;
  margin-bottom: 10px;
  text-align: center;
  padding: 8px 0;
}

.article-cont-code .article-right-box .question-butte i {
  position: relative;
  top: 3px;
  margin-right: 7px;
}

.article-cont-code .article-right-box .about-teach {
  background: #fff;
  padding: 20px;
}

.article-cont-code .article-right-box .about-teach .teach-info {
  overflow: hidden;
}

.article-cont-code .article-right-box .about-teach .teach-info img {
  float: left;
  margin-right: 10px;
}

.article-cont-code .article-right-box .about-teach .teach-info span {
  font-size: 16px;
}

.article-cont-code .article-right-box .about-teach .teach-info .about {
  text-align: left;
  line-height: 24px;
  margin-top: 5px;
  color: #5f1898;
}

.article-cont-code .article-right-box .about-teach p:nth-child(2) {
  text-align: center;
  padding: 10px 0;
}

.article-cont-code .article-right-box .about-teach p:nth-child(2) a {
  display: inline-block;
  width: 100%;
  background: #00a4ff;
  color: #fff;
}

.article-cont-code .article-right-box .about-teach .synopsis {
  color: #787d82;
}

.article-cont-code .article-right-box .learing-box .tit {
  font-size: 18px;
  color: #00a4ff;
  padding: 20px;
}

.article-cont-code .article-right-box .learing-box .item-box {
  background: #fff;
}

.article-cont-code .article-right-box .learing-box .item-box .item-list {
  overflow: hidden;
  height: 50px;
  border-bottom: solid 1px #bdbdbd;
}

.article-cont-code .article-right-box .learing-box .item-box .item-list a {
  color: #050505;
  padding: 0 20px;
  display: block;
  line-height: 50px;
}

.article-cont-code .article-right-box .learing-box .item-box .item-list a:last-child {
  border: none;
}

.article-cont-code .article-right-box .learing-box .item-box .item-list .infobox {
  position: relative;
  top: -140px;
}

.article-cont-code .article-right-box .learing-box .item-box .item-list .morebox {
  background: url(http://www.51xuecheng.cn/static/img/widget-titBg.png) no-repeat;
  background-size: cover;
  text-align: center;
  color: #fff;
}

.article-cont-code .article-right-box .learing-box .item-box .item-list .morebox .top-tit {
  font-size: 22px;
  padding-top: 20px;
  font-weight: bold;
}

.article-cont-code .article-right-box .learing-box .item-box .item-list .morebox .top-lab {
  font-size: 16px;
  margin-bottom: 10px;
}

.article-cont-code .article-right-box .learing-box .item-box .item-list .morebox .top-num {
  font-size: 14px;
  text-align: left;
  position: relative;
  padding: 0 20px;
  background: rgba(0, 0, 0, 0.5);
  line-height: 34px;
}

.article-cont-code .article-right-box .learing-box .item-box .item-list .morebox .top-num span {
  position: absolute;
  right: 20px;
  top: 0px;
}

.article-cont-code .article-right-box .learing-box .item-box .hov {
  height: 140px;
}

.article-cont-code .article-right-box .learing-box .item-box .hov .infobox {
  top: 0px;
  transition: 800ms;
}

.article-cont-code .article-right-box .learing-box .item-box .hov a {
  display: none;
}

/*
 * colors variables
 */
html, body {
  min-height: 100%;
  height: 100%;
  min-width: 1000px;
  background: #f3f5f7;
}

a {
  color: #2da1e7;
}

a:hover {
  color: #2da1e7;
  text-decoration: none;
}

h1, h2, h3, h4, h5, h6, p {
  padding: 0px;
  margin: 0;
  line-height: 200%;
}

em, i {
  font-style: normal;
}

.cr-pd-mr {
  padding: 0px;
  margin: 0px;
}

.cl-red {
  color: red !important;
}

.cl-orange {
  color: #ff5a2c !important;
}

.ft-cen {
  text-align: center;
}

.more {
  color: #2da1e7;
}

.cl-basics {
  color: #00a4ff;
}

.hv-poin:hover {
  cursor: pointer;
}

.pd-left {
  padding-left: 15px;
}

.pd-rit {
  padding-right: 15px;
}

.btn-primary {
  background: #00a4ff;
  border: none;
}

.cl-boder {
  border: none;
}

.hide {
  display: none;
}

.show {
  display: block;
}

/****
* icon 图标 common
****/
.i-chevron-top {
  display: inline-block;
  width: 13px;
  height: 10px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -83px 2px;
}

.i-chevron-bot {
  display: inline-block;
  width: 13px;
  height: 10px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -83px -6px;
}

.i-heart {
  display: inline-block;
  width: 20px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -104px 0px;
}

.i-star {
  display: inline-block;
  width: 14px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -57px 0px;
}

.i-weixin {
  display: inline-block;
  width: 18px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 0px 1px;
}

.i-qq {
  display: inline-block;
  width: 18px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -26px 0px;
}

.i-answer {
  display: inline-block;
  width: 16px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -133px 0px;
}

.i-browse {
  display: inline-block;
  width: 15px;
  height: 12px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 0px -20px;
}

.i-problem {
  display: inline-block;
  width: 23px;
  height: 19px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -133px -21px;
}

.i-node {
  display: inline-block;
  width: 23px;
  height: 19px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -102px -21px;
}

.i-edt {
  display: inline-block;
  width: 16px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -22px -19px;
}

.i-del {
  display: inline-block;
  width: 15px;
  height: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -43px -19px;
}

.i-laud {
  display: inline-block;
  width: 15px;
  height: 15px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -64px -19px;
}

.i-coll {
  display: inline-block;
  width: 15px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: 1px -35px;
}

.i-play {
  display: inline-block;
  width: 14px;
  height: 13px;
  background: url(http://www.51xuecheng.cn/static/img/asset-icoGather.png) no-repeat;
  background-position: -22px -35px;
  margin-right: 8px;
}

.article-cont {
  width: 100%;
  max-width: 1170px;
  margin: 0 auto;
  overflow: hidden;
}

.article-cont .article-left-box {
  padding-top: 20px;
  width: 75%;
  float: left;
}

.article-cont .article-left-box .comment-box .evaluate {
  width: 100%;
  position: relative;
  background: #fff;
  padding: 25px;
}

.article-cont .article-left-box .comment-box .evaluate .eva-top {
  margin-bottom: 15px;
  font-size: 18px;
  font-weight: bold;
}

.article-cont .article-left-box .comment-box .evaluate .eva-top .tit {
  float: left;
  line-height: 10px;
  width: 15%;
  text-align: center;
  min-width: 102px;
}

.article-cont .article-left-box .comment-box .evaluate .eva-top .star-score {
  font-size: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-scorbg.png) no-repeat;
  color: #ff7c2d;
  position: relative;
  display: inline-block;
  text-align: center;
  top: -5px;
  left: 10px;
  width: 71px;
  height: 20px;
}

.article-cont .article-left-box .comment-box .evaluate .eva-cont {
  font-size: 18px;
  font-weight: bold;
  text-align: center;
  overflow: hidden;
}

.article-cont .article-left-box .comment-box .evaluate .eva-cont .tit {
  float: left;
  width: 15%;
  min-width: 102px;
}

.article-cont .article-left-box .comment-box .evaluate .eva-cont .text-box {
  float: left;
  width: 80%;
}

.article-cont .article-left-box .comment-box .evaluate .eva-cont .text-box .form-control {
  border-radius: 0;
  border: solid 1px #787d82;
}

.article-cont .article-left-box .comment-box .evaluate .eva-cont .text-right {
  text-align: left;
  margin-top: 10px;
}

.article-cont .article-left-box .comment-box .evaluate .eva-cont .text-right span {
  cursor: pointer;
  background: #00a4ff;
  display: inline-block;
  padding: 4px 15px;
  font-size: 14px;
  color: #fff;
}

.article-cont .article-left-box .comment-box .course-evaluate {
  margin-top: 10px;
  padding: 30px 30px 20px 30px;
  background: #fff;
}

.article-cont .article-left-box .comment-box .course-evaluate .top-tit {
  font-weight: bold;
  font-size: 18px;
  position: relative;
}

.article-cont .article-left-box .comment-box .course-evaluate .top-tit span {
  position: absolute;
  right: 0;
}

.article-cont .article-left-box .comment-box .course-evaluate .top-tit span label {
  margin-right: 15px;
  color: #787d82;
  font-weight: normal;
  font-size: 14px;
}

.article-cont .article-left-box .comment-box .course-evaluate .top-tit span label input {
  position: relative;
  top: 2px;
  margin-right: 1px;
}

.article-cont .article-left-box .comment-box .course-evaluate .top-cont {
  overflow: hidden;
  width: 100%;
  margin-top: 30px;
  padding-bottom: 20px;
  border-bottom: solid 1px #dadada;
}

.article-cont .article-left-box .comment-box .course-evaluate .top-cont .cont-top-left {
  float: left;
  width: 22%;
}

.article-cont .article-left-box .comment-box .course-evaluate .top-cont .cont-top-left .star-scor {
  position: relative;
  overflow: hidden;
}

.article-cont .article-left-box .comment-box .course-evaluate .top-cont .cont-top-left .star-scor .scor {
  float: right;
  position: relative;
  top: -1px;
  color: #ff7c2d;
  font-weight: bold;
  font-size: 18px;
}

.article-cont .article-left-box .comment-box .course-evaluate .top-cont .cont-top-left .all-scor {
  margin-top: 5px;
  font-size: 18px;
}

.article-cont .article-left-box .comment-box .course-evaluate .top-cont .cont-top-right {
  float: right;
  width: 70%;
}

.article-cont .article-left-box .comment-box .course-evaluate .top-cont .cont-top-right .star-grade {
  margin: 8px 0;
  position: relative;
}

.article-cont .article-left-box .comment-box .course-evaluate .top-cont .cont-top-right .star-grade .grade {
  float: right;
  width: 90%;
}

.article-cont .article-left-box .comment-box .course-evaluate .top-cont .cont-top-right .star-grade .grade .grade-percent {
  width: 85%;
  height: 15px;
  background: #dadada;
  float: left;
}

.article-cont .article-left-box .comment-box .course-evaluate .top-cont .cont-top-right .star-grade .grade .grade-percent span {
  display: inline-block;
  background: #f07700;
  height: 15px;
}

.article-cont .article-left-box .comment-box .course-evaluate .top-cont .cont-top-right .star-grade .grade .percent-num {
  position: relative;
  top: -4px;
  float: right;
}

.article-cont .article-left-box .comment-box .course-evaluate .comment-item-box .title {
  font-size: 18px;
  position: relative;
  font-weight: bold;
  margin: 20px 0;
}

.article-cont .article-left-box .comment-box .course-evaluate .comment-item-box .title span {
  position: absolute;
  right: 0px;
  top: 5px;
  font-weight: normal;
  font-size: 14px;
}

.article-cont .article-left-box .comment-box .course-evaluate .comment-item-box .item {
  overflow: hidden;
  border-bottom: solid 1px #dadada;
  padding: 20px 0;
}

.article-cont .article-left-box .comment-box .course-evaluate .comment-item-box .item .item-left {
  width: 15%;
  float: left;
  text-align: center;
  color: #0077cc;
}

.article-cont .article-left-box .comment-box .course-evaluate .comment-item-box .item .item-cent {
  float: left;
  width: 60%;
  color: #787d82;
}

.article-cont .article-left-box .comment-box .course-evaluate .comment-item-box .item .item-cent .time {
  margin-top: 5px;
  color: #999;
}

.article-cont .article-left-box .comment-box .course-evaluate .comment-item-box .item .item-rit {
  width: 20%;
  float: right;
  color: #787d82;
}

.article-cont .article-left-box .comment-box .course-evaluate .comment-item-box .item .item-rit p:last-child span {
  color: #ff7c2d;
}

.article-cont .article-left-box .comment-box .course-evaluate .comment-item-box .get-more {
  color: #f07700;
  text-align: center;
  padding-top: 20px;
}

.article-cont .article-right-box {
  width: 24%;
  float: right;
  padding-top: 20px;
}

.article-cont .article-right-box .about-teach {
  background: #fff;
  padding: 20px;
}

.article-cont .article-right-box .about-teach .teach-info {
  overflow: hidden;
}

.article-cont .article-right-box .about-teach .teach-info img {
  float: left;
  margin-right: 10px;
}

.article-cont .article-right-box .about-teach .teach-info span {
  font-size: 16px;
}

.article-cont .article-right-box .about-teach .teach-info .about {
  text-align: left;
  line-height: 24px;
  margin-top: 5px;
  color: #5f1898;
}

.article-cont .article-right-box .about-teach p:nth-child(2) {
  text-align: center;
  padding: 10px 0;
}

.article-cont .article-right-box .about-teach p:nth-child(2) a {
  display: inline-block;
  width: 100%;
  background: #00a4ff;
  color: #fff;
}

.article-cont .article-right-box .about-teach .synopsis {
  color: #787d82;
}

.article-cont .article-right-box .learing-box .tit {
  font-size: 18px;
  color: #00a4ff;
  padding: 20px;
}

.article-cont .article-right-box .learing-box .item-box {
  background: #fff;
}

.article-cont .article-right-box .learing-box .item-box .item-top {
  background: url(http://www.51xuecheng.cn/static/img/widget-titBg.png) no-repeat;
  background-size: cover;
  text-align: center;
  color: #fff;
}

.article-cont .article-right-box .learing-box .item-box .item-top .top-tit {
  font-size: 22px;
  padding-top: 20px;
  font-weight: bold;
}

.article-cont .article-right-box .learing-box .item-box .item-top .top-lab {
  font-size: 16px;
  margin-bottom: 10px;
}

.article-cont .article-right-box .learing-box .item-box .item-top .top-num {
  font-size: 14px;
  text-align: left;
  position: relative;
  padding: 0 20px;
  background: rgba(0, 0, 0, 0.5);
  line-height: 34px;
}

.article-cont .article-right-box .learing-box .item-box .item-top .top-num span {
  position: absolute;
  right: 20px;
  top: 0px;
}

.article-cont .article-right-box .learing-box .item-box .item-list {
  padding: 0 20px;
}

.article-cont .article-right-box .learing-box .item-box .item-list a {
  color: #050505;
  display: block;
  line-height: 50px;
  border-bottom: solid 1px #bdbdbd;
}

.article-cont .article-right-box .learing-box .item-box .item-list a:last-child {
  border: none;
}

.star {
  width: 145px;
  height: 23px;
  margin-top: 0px;
  display: inline-block;
  background: url(http://www.51xuecheng.cn/static/img/asset-stara.png) no-repeat;
  background-size: contain;
}

.star .score {
  width: 0px;
  height: 23px;
  float: right;
  display: inline-block;
  background: url(http://www.51xuecheng.cn/static/img/asset-starGreya.png) top right no-repeat;
  background-size: cover;
}

.star .score i {
  display: none;
}

.star-show {
  width: 109px;
  height: 19px;
  margin-top: 0px;
  display: inline-block;
  background: url(http://www.51xuecheng.cn/static/img/asset-star-show.png) no-repeat;
  background-size: contain;
}

.star-show .score i {
  display: none;
}

.course-cont {
  position: absolute;
  width: 100%;
  right: 0px;
  padding: 0 !important;
  border-right: solid 1px #333;
  overflow: auto;
}

.course-cont .video-box {
  position: absolute;
  background: #000;
  right: 0px;
  width: 100%;
}

.course-cont .video-box i:before {
  top: 1px;

  position: relative;
}

.course-cont .video-box .top {
  font-size: 24px;
  line-height: 50px;
  background: #14191e;
  position: relative;
  z-index: 99;
  padding: 0 15px;
  color: #999;
}

.course-cont .video-box .resources {
  position: absolute;
  overflow: hidden;
  text-align: left;
  right: 10px;
  top: 50px;
  z-index: 99;
  height: 0px;
  background: #fff;
  color: #787d82;
  font-size: 14px;
}

.course-cont .video-box .resources i:before {
  position: relative;
  top: 1px;
  padding-right: 5px;
}

.course-cont .video-box .resources .resou-box div {
  padding: 0 20px;
  height: 36px;
  line-height: 36px;
}

.course-cont .video-box .resources .tit {
  color: #000;
}

.course-cont .video-box .resources .resources-tit {
  padding-top: 7px;
  line-height: 22px;
  color: #00a4ff;
  border-bottom: solid 1px #dadada;
}

.course-cont .video-box .media {
  width: 100%;
  height: 100%;
}

.course-cont .video-box .video {
  font-size: 24px;
  color: #999;
  position: relative;
}

.course-cont .video-box .video img {
  width: 100%;
}

.course-cont .video-box .video span {
  padding-right: 20px;
}

.course-cont .video-box .video .video-play {
  position: relative;
}

.course-cont .video-box .video .but-ico {
  position: absolute;
  bottom: 65px;
  right: 15px;
}

.course-cont .video-box .video .video-mine {
  height: 100%;
  position: relative;
}

.course-cont .video-box .video .video-mine .cls-text {
  position: absolute;
  background: #fff;
  overflow: hidden;
  top: 0px;
  left: 0px;
  width: 0;
  height: 0;
}

.course-cont .video-box .video .video-mine .cls-video {
  position: absolute;
  top: 0px;
  right: 0px;
  width: 100%;
  height: 100%;
}

.course-cont .video-box .video .video-mine .cls-video .vdControl {
  position: absolute;
  right: 50px;
  bottom: 50px;
  z-index: 11;
}

.course-cont .note {
  padding: 0px;
  background: #e9f7ff;
  position: absolute;
  width: 0px;
  height: 100%;
  overflow: hidden;
  right: 0px;
  top: 50px;
}

.course-cont .note li {
  list-style: none;
}

.course-cont .note .note-box {
  background: #f4f4f4;
  height: 100%;
  text-align: left;
  width: 400px;
  color: #000;
  font-size: 14px;
  float: left;
}

.course-cont .note .note-box .note-lab {
  text-align: center;
  line-height: 50px;
  font-size: 16px;
}

.course-cont .note .note-box .note-lab span {
  display: inline-block;
  cursor: pointer;
  padding: 5px 10%;
}

.course-cont .note .note-box .note-item-cont {
  position: relative;
  width: 800px;
  overflow: hidden;
}

.course-cont .note .note-box .my-note, .course-cont .note .note-box .sel-note {
  position: relative;
  float: left;
  width: 400px;
}

.course-cont .note .note-box .my-note textarea, .course-cont .note .note-box .sel-note textarea {
  margin: 0 auto;
  display: block;
  border: solid 1px #dadada;
  min-height: 150px;
  margin-bottom: 20px;
  width: 90%;
}

.course-cont .note .note-box .my-note .info, .course-cont .note .note-box .sel-note .info {
  height: 40px;
}

.course-cont .note .note-box .my-note .info .time, .course-cont .note .note-box .sel-note .info .time {
  padding-left: 20px;
}

.course-cont .note .note-box .my-note .info .not-but, .course-cont .note .note-box .sel-note .info .not-but {
  position: absolute;
  background: #00a4ff;
  text-align: center;
  color: #fff;
  right: 20px;
  padding: 4px 40px;
}

.course-cont .note .note-box .my-note .more, .course-cont .note .note-box .sel-note .more {
  display: inline-block;
  width: 100%;
  text-align: center;
  color: #fff;
  line-height: 40px;
  background: #999;
  text-decoration: none;
}

.course-cont .note .note-box .my-note .my-item-box, .course-cont .note .note-box .sel-note .my-item-box {
  color: #787d82;
  padding: 0px;
  overflow-y: scroll;
}

.course-cont .note .note-box .my-note .my-item-box .name, .course-cont .note .note-box .sel-note .my-item-box .name {
  padding-left: 7px;
  color: #00a4ff;
}

.course-cont .note .note-box .my-note .my-item-box .cont, .course-cont .note .note-box .sel-note .my-item-box .cont {
  padding: 20px 0;
}

.course-cont .note .note-box .my-note .my-item-box .time, .course-cont .note .note-box .sel-note .my-item-box .time {
  position: absolute;
  right: 10px;
  top: 25px;
}

.course-cont .note .note-box .my-note .my-item-box li, .course-cont .note .note-box .sel-note .my-item-box li {
  padding: 15px;
  position: relative;
  border-top: solid 1px #999;
}

.course-cont .note .note-box .my-note .my-item-box li img, .course-cont .note .note-box .sel-note .my-item-box li img {
  display: inline-block;
  width: 40px;
  height: 40px;
  border-radius: 60px;
}

.course-cont .note .note-box .my-note .my-item-box .operation, .course-cont .note .note-box .sel-note .my-item-box .operation {
  position: relative;
}

.course-cont .note .note-box .my-note .my-item-box .operation .oper-box, .course-cont .note .note-box .sel-note .my-item-box .operation .oper-box {
  position: absolute;
  right: 0px;
  top: 0px;
}

.course-cont .note .note-box .my-note .my-item-box .operation .oper-box i, .course-cont .note .note-box .sel-note .my-item-box .operation .oper-box i {
  position: relative;
  right: 5px;
  top: 2px;
}

.course-cont .note .note-box .my-note .my-item-box .operation .oper-box span, .course-cont .note .note-box .sel-note .my-item-box .operation .oper-box span {
  padding: 10px;
}

.course-cont .note .note-box .note-cont {
  line-height: 30px;
  font-size: 16px;
  padding: 0 20px;
  overflow-y: scroll;
}

.course-cont .note .note-box .tit {
  font-size: 16px;
  padding-top: 10px;
}

.course-cont .note .note-box .problem {
  background: #fff;
  border: solid 1px #00a4ff;
  color: #00a4ff;
  padding: 10px;
  width: 360px;
}

.course-cont .note .note-box .problem p {
  display: none;
  padding: 10px 0px;
  margin: 0;
  color: #787d82;
}

.course-cont .note .note-box .problem:before {
  content: '?';
  display: inline-block;
  text-align: center;
  color: #fff;
  margin-right: 5px;
  width: 20px;
  height: 20px;
  background: #00a4ff;
}

.course-cont .note .active {
  color: #00a4ff;
}

.course-cont .ask {
  padding: 0px;
  background: #e9f7ff;
  position: absolute;
  width: 0px;
  height: 100%;
  overflow: hidden;
  right: 0px;
  top: 50px;
}

.course-cont .ask li {
  list-style: none;
}

.course-cont .ask .ask-box {
  background: #f4f4f4;
  height: 100%;
  text-align: left;
  width: 400px;
  color: #000;
  font-size: 14px;
  float: left;
}

.course-cont .ask .ask-box .note-lab {
  text-align: center;
  line-height: 50px;
  font-size: 16px;
}

.course-cont .ask .ask-box .note-lab span {
  display: inline-block;
  cursor: pointer;
  padding: 5px 10%;
}

.course-cont .ask .ask-box .note-item-cont {
  position: relative;
  width: 800px;
  overflow: hidden;
}

.course-cont .ask .ask-box .my-note, .course-cont .ask .ask-box .sel-note {
  position: relative;
  float: left;
  width: 400px;
}

.course-cont .ask .ask-box .my-note .ask-title, .course-cont .ask .ask-box .sel-note .ask-title {
  margin: 0 20px 10px 20px;
  padding: 5px 10px;
  width: 90%;
}

.course-cont .ask .ask-box .my-note textarea, .course-cont .ask .ask-box .sel-note textarea {
  margin: 0 auto;
  display: block;
  border: solid 1px #dadada;
  min-height: 116px;
  padding: 5px 10px;
  margin-bottom: 10px;
  width: 90%;
}

.course-cont .ask .ask-box .my-note .info, .course-cont .ask .ask-box .sel-note .info {
  height: 40px;
}

.course-cont .ask .ask-box .my-note .info .pic, .course-cont .ask .ask-box .sel-note .info .pic {
  cursor: pointer;
  margin-left: 20px;
  padding: 3px 10px;
  border-radius: 4px;
  border: solid 1px #787d82;
}

.course-cont .ask .ask-box .my-note .info .time, .course-cont .ask .ask-box .sel-note .info .time {
  padding-left: 20px;
}

.course-cont .ask .ask-box .my-note .info .not-but, .course-cont .ask .ask-box .sel-note .info .not-but {
  position: absolute;
  background: #00a4ff;
  text-align: center;
  color: #fff;
  right: 20px;
  padding: 4px 40px;
}

.course-cont .ask .ask-box .my-note .our-answer, .course-cont .ask .ask-box .sel-note .our-answer {
  cursor: pointer;
  color: #00a4ff;
  border: solid 1px #00a4ff;
  border-radius: 3px;
  padding: 3px 10px;
  position: absolute;
  right: 10px;
  top: 18px;
}

.course-cont .ask .ask-box .my-note .more, .course-cont .ask .ask-box .sel-note .more {
  display: inline-block;
  width: 100%;
  text-align: center;
  color: #fff;
  line-height: 40px;
  background: #999;
  text-decoration: none;
}

.course-cont .ask .ask-box .my-note .my-item-box, .course-cont .ask .ask-box .sel-note .my-item-box {
  color: #787d82;
  padding: 0px;
  overflow-y: scroll;
}

.course-cont .ask .ask-box .my-note .my-item-box .name, .course-cont .ask .ask-box .sel-note .my-item-box .name {
  padding-left: 7px;
  color: #00a4ff;
}

.course-cont .ask .ask-box .my-note .my-item-box .cont, .course-cont .ask .ask-box .sel-note .my-item-box .cont {
  padding: 10px 0 20px 0;
}

.course-cont .ask .ask-box .my-note .my-item-box .time, .course-cont .ask .ask-box .sel-note .my-item-box .time {
  position: absolute;
  right: 10px;
  top: 25px;
}

.course-cont .ask .ask-box .my-note .my-item-box li, .course-cont .ask .ask-box .sel-note .my-item-box li {
  padding: 15px;
  position: relative;
  border-top: solid 1px #999;
}

.course-cont .ask .ask-box .my-note .my-item-box li img, .course-cont .ask .ask-box .sel-note .my-item-box li img {
  display: inline-block;
  width: 40px;
  height: 40px;
  border-radius: 60px;
}

.course-cont .ask .ask-box .my-note .my-item-box .operation, .course-cont .ask .ask-box .sel-note .my-item-box .operation {
  position: relative;
}

.course-cont .ask .ask-box .my-note .my-item-box .operation .oper-box, .course-cont .ask .ask-box .sel-note .my-item-box .operation .oper-box {
  position: absolute;
  right: 0px;
  top: 0px;
}

.course-cont .ask .ask-box .my-note .my-item-box .operation .oper-box i, .course-cont .ask .ask-box .sel-note .my-item-box .operation .oper-box i {
  position: relative;
  right: 5px;
  top: 2px;
}

.course-cont .ask .ask-box .my-note .my-item-box .operation .oper-box span, .course-cont .ask .ask-box .sel-note .my-item-box .operation .oper-box span {
  padding: 10px;
}

.course-cont .ask .ask-box .note-cont {
  line-height: 30px;
  font-size: 16px;
  padding: 0 20px;
  overflow-y: scroll;
}

.course-cont .ask .ask-box .tit {
  font-size: 16px;
  padding-top: 10px;
}

.course-cont .ask .ask-box .problem {
  background: #fff;
  border: solid 1px #00a4ff;
  color: #00a4ff;
  padding: 10px;
  width: 360px;
}

.course-cont .ask .ask-box .problem p {
  display: none;
  padding: 10px 0px;
  margin: 0;
  color: #787d82;
}

.course-cont .ask .ask-box .problem:before {
  content: '?';
  display: inline-block;
  text-align: center;
  color: #fff;
  margin-right: 5px;
  width: 20px;
  height: 20px;
  background: #00a4ff;
}

.course-cont .ask .active {
  color: #00a4ff;
}

.course-cont .com {
  padding: 0px;
  background: #e9f7ff;
  position: absolute;
  width: 0px;
  height: 100%;
  overflow: hidden;
  right: 0px;
  top: 50px;
}

.course-cont .com li {
  list-style: none;
}

.course-cont .com .com-box {
  background: #f4f4f4;
  height: 100%;
  text-align: left;
  width: 400px;
  color: #000;
  font-size: 14px;
  float: left;
}

.course-cont .com .com-box .note-lab {
  text-align: center;
  line-height: 50px;
  font-size: 16px;
}

.course-cont .com .com-box .note-lab span {
  display: inline-block;
  cursor: pointer;
  padding: 5px 10%;
}

.course-cont .com .com-box .note-item-cont {
  position: relative;
  width: 800px;
  overflow: hidden;
}

.course-cont .com .com-box .my-note {
  position: relative;
  float: left;
  width: 400px;
}

.course-cont .com .com-box .my-note .evaluate {
  width: 100%;
  position: relative;
  background: #fff;
  padding: 15px;
}

.course-cont .com .com-box .my-note .evaluate .eva-top {
  margin-bottom: 15px;
  font-size: 18px;
  font-weight: bold;
}

.course-cont .com .com-box .my-note .evaluate .eva-top .tit {
  float: left;
  width: 15%;
  font-size: 18px;
  padding-top: 2px;
  text-align: left;
  min-width: 102px;
}

.course-cont .com .com-box .my-note .evaluate .eva-top .star-score {
  font-size: 14px;
  background: url(http://www.51xuecheng.cn/static/img/asset-scorbg.png) no-repeat;
  color: #ff7c2d;
  position: relative;
  display: inline-block;
  text-align: center;
  top: -5px;
  left: 10px;
  width: 71px;
  height: 20px;
}

.course-cont .com .com-box .my-note .evaluate .eva-cont {
  font-size: 18px;
  font-weight: bold;
  text-align: center;
  overflow: hidden;
}

.course-cont .com .com-box .my-note .evaluate .eva-cont .tit {
  float: left;
  text-align: left;
  font-size: 18px;
  width: 15%;
  min-width: 102px;
  margin-bottom: 10px;
}

.course-cont .com .com-box .my-note .evaluate .eva-cont .text-box {
  float: left;
  width: 100%;
}

.course-cont .com .com-box .my-note .evaluate .eva-cont .text-box .form-control {
  border-radius: 0;
  border: solid 1px #787d82;
}

.course-cont .com .com-box .my-note .evaluate .eva-cont .text-right {
  text-align: left;
  margin-top: 10px;
}

.course-cont .com .com-box .my-note .evaluate .eva-cont .text-right span {
  cursor: pointer;
  background: #00a4ff;
  display: inline-block;
  padding: 4px 15px;
  font-size: 14px;
  color: #fff;
}

.course-cont .com .com-box .my-note .info {
  height: 40px;
}

.course-cont .com .com-box .my-note .info .pic {
  cursor: pointer;
  margin-left: 20px;
  padding: 3px 10px;
  border-radius: 4px;
  border: solid 1px #787d82;
}

.course-cont .com .com-box .my-note .info .time {
  padding-left: 20px;
}

.course-cont .com .com-box .my-note .info .not-but {
  position: absolute;
  background: #00a4ff;
  text-align: center;
  color: #fff;
  right: 20px;
  padding: 4px 40px;
}

.course-cont .com .com-box .my-note .our-answer {
  cursor: pointer;
  color: #00a4ff;
  border: solid 1px #00a4ff;
  border-radius: 3px;
  padding: 3px 10px;
  position: absolute;
  right: 10px;
  top: 18px;
}

.course-cont .com .com-box .my-note .more {
  display: inline-block;
  width: 100%;
  text-align: center;
  color: #fff;
  line-height: 40px;
  background: #999;
  text-decoration: none;
}

.course-cont .com .com-box .my-note .my-item-box {
  color: #787d82;
  padding: 0px;
  overflow-y: scroll;
}

.course-cont .com .com-box .my-note .my-item-box .item-rit {
  position: relative;
  width: 50%;
  top: 6px;
  float: right;
  color: #787d82;
}

.course-cont .com .com-box .my-note .my-item-box .item-rit .showSt {
  display: inline;
  position: absolute;
  right: 0px;
  top: 1px;
}

.course-cont .com .com-box .my-note .my-item-box .item-rit .showSt span {
  color: #ff7c2d;
}

.course-cont .com .com-box .my-note .my-item-box .name {
  padding-left: 7px;
  color: #00a4ff;
}

.course-cont .com .com-box .my-note .my-item-box .cont {
  padding: 10px 0 20px 0;
}

.course-cont .com .com-box .my-note .my-item-box .time {
  position: absolute;
  right: 10px;
  top: 25px;
}

.course-cont .com .com-box .my-note .my-item-box li {
  padding: 15px;
  position: relative;
  border-top: solid 1px #999;
}

.course-cont .com .com-box .my-note .my-item-box li img {
  display: inline-block;
  width: 40px;
  height: 40px;
  border-radius: 60px;
}

.course-cont .com .com-box .my-note .my-item-box .operation {
  position: relative;
}

.course-cont .com .com-box .my-note .my-item-box .operation .oper-box {
  position: absolute;
  right: 0px;
  top: 0px;
}

.course-cont .com .com-box .my-note .my-item-box .operation .oper-box i {
  position: relative;
  right: 5px;
  top: 2px;
}

.course-cont .com .com-box .my-note .my-item-box .operation .oper-box span {
  padding: 10px;
}

.course-cont .com .com-box .note-cont {
  line-height: 30px;
  font-size: 16px;
  padding: 0 20px;
  overflow-y: scroll;
}

.course-cont .com .com-box .tit {
  font-size: 16px;
  padding-top: 10px;
}

.course-cont .com .com-box .problem {
  background: #fff;
  border: solid 1px #00a4ff;
  color: #00a4ff;
  padding: 10px;
  width: 360px;
}

.course-cont .com .com-box .problem p {
  display: none;
  padding: 10px 0px;
  margin: 0;
  color: #787d82;
}

.course-cont .com .com-box .problem:before {
  content: '?';
  display: inline-block;
  text-align: center;
  color: #fff;
  margin-right: 5px;
  width: 20px;
  height: 20px;
  background: #00a4ff;
}

.course-cont .com .active {
  color: #00a4ff;
}

.course-cont .navCont {
  padding: 0px;
  background: #e9f7ff;
  position: absolute;
  width: 0px;
  height: 100%;
  overflow: hidden;
  right: 0px;
  top: 0px;
}

.course-cont .navCont li {
  padding: 0px;
  margin: 0px;
  list-style: none;
}

.course-cont .navCont .online-box {
  background: #f4f4f4;
  height: 100%;
  text-align: left;
  width: 400px;
  color: #000;
  font-size: 14px;
  float: left;
}

.course-cont .navCont .online-box .online-top {
  font-size: 18px;
  background: #fff;
  padding: 10px 15px;
}

.course-cont .navCont .online-box .chat-box {
  min-height: 750px;
  padding: 15px;
  border-top: solid 1px #666;
  border-bottom: solid 1px #666;
}

.course-cont .navCont .online-box .chat-box li {
  padding: 5px 0;
  height: 30px;
}

.course-cont .navCont .online-box .chat-box li span {
  margin-right: 10px;
}

.course-cont .navCont .online-box .chat-box li img {
  width: 30px;
  border-radius: 50%;
}

.course-cont .navCont .online-box .chat-box .rt {
  text-align: right;
  line-height: 30px;
  height: 30px;
}

.course-cont .navCont .online-box .chat-box .rt span {
  margin-left: 10px;
  text-align: right;
  float: right;
}

.course-cont .navCont .online-box .online-sub {
  background: #fff;
  height: 97px;
}

.course-cont .navCont .online-box .online-sub input {
  width: 100%;
  margin: 10px 0;
  padding: 10px 10px;
}

.course-cont .navCont .online-box .online-sub .online-submit {
  display: inline-block;
  margin: 0 10px;
  cursor: pointer;
  padding: 3px 15px;
  border-radius: 3px;
  background: #77b45f;
  color: #fff;
}

.course-cont .subtitle-cont {
  background: #f4f4f4;
  color: #333;
  padding: 0 15px 60px 15px;
}

.course-cont .subtitle-cont .container {
  padding: 0;
}

.course-cont .subtitle-cont .container .tit {
  padding-top: 10px;
  line-height: 50px;
  font-size: 18px;
}

.course-cont .subtitle-cont .container .tit span {
  display: inline-block;
  cursor: pointer;
  padding: 0 20px;
}

.course-cont .subtitle-cont .container .tit .active {
  color: #00a4ff;
}

.course-cont .subtitle-cont .container .content {
  padding: 0;
}

.course-cont .subtitle-cont .container .search-area {
  padding: 10px;
}

.course-cont .subtitle-cont .container .video-textes li {
  margin: 10px 0;
  list-style: none;
  line-height: 200%;
}

.course-cont .subtitle-cont .container .video-textes li span {
  display: block;
  color: #2da1e7;
}

.course-cont .course-weeklist {
  height: 100%;
  position: absolute;
  right: -300px;
  top: 50px;
  width: 300px;
  z-index: 99;
  background: #14191e;
  overflow-y: scroll;
}

.course-cont .course-weeklist .tit {
  padding: 0 15px;
  line-height: 50px;
  font-size: 20px;
  border-bottom: none;
  background: #14191e;
  color: #999;
  margin-bottom: 10px;
}

.course-cont .course-weeklist .tit i:before {
  position: relative;
  top: 11px;
}

.course-cont .course-weeklist .nav-stacked {
  color: #999;
}

.course-cont .course-weeklist .nav-stacked li {
  list-style: none;
  padding: 10px 15px;
  font-size: 14px;
}

.course-cont .course-weeklist .nav-stacked li i {
  margin-right: 5px;
}

.course-cont .course-weeklist .nav-stacked li span {
  border: solid 1px #ddd;
  padding: 2px;
  font-size: 12px;
  border-radius: 3px;
}

.course-cont .course-nav {
  position: absolute;
  width: 54px;
  top: 20%;
  right: 0px;
  z-index: 11;
}

.course-cont .course-nav li {
  list-style: none;
  background: #363c40;
  padding: 0px;
}

.course-cont .course-nav li:hover, .course-cont .course-nav a:hover {
  background: #00a4ff;
}

.course-cont .course-nav li:hover a, .course-cont .course-nav a:hover a {
  color: #fff;
}

.course-cont .course-nav a {
  color: #999;
  font-size: 16px;
  padding: 15px;
  text-decoration: none;
  text-align: center;
}

.course-cont .course-nav a span {
  font-size: 12px;
}

.course-cont .course-nav a::before {
  display: block;
}

.course-cont .course-nav .active a {
  color: #fff;
}

.course-cont #vdplay {
  width: 100% !important;
  height: 100% !important;
}

.popup {
  display: none;
}

.popup .mask {
  position: fixed;
  left: 0px;
  top: 0px;
  width: 100%;
  height: 100%;
  z-index: 99;
  background: rgba(0, 0, 0, 0.6);
}

.popup .content {
  position: absolute;
  background: #fff;
  padding-bottom: 15px;
  width: 60%;
  overflow: hidden;
  top: 10%;
  left: 50%;
  margin-left: -30%;
  z-index: 100;
}

.popup .content .title {
  position: relative;
  color: #00a4ff;
  font-size: 18px;
  margin: 15px 20px;
}

.popup .content .title .clone {
  cursor: pointer;
  position: absolute;
  color: #787d82;
  top: 7px;
  right: 0px;
  font-size: 16px;
}

.popup .content .set-item .ask-info {
  padding: 15px;
  position: relative;
  color: #787d82;
  border-top: solid 1px #999;
  border-bottom: solid 1px #999;
}

.popup .content .set-item .ask-info img {
  display: inline-block;
  width: 40px;
  height: 40px;
  border-radius: 60px;
}

.popup .content .set-item .my-item-box {
  color: #787d82;
  padding: 20px;
  overflow-y: scroll;
}

.popup .content .set-item .my-item-box li {
  padding: 15px;
  position: relative;
  list-style: none;
  border-bottom: dashed 1px #999;
}

.popup .content .set-item .my-item-box li img {
  display: inline-block;
  width: 40px;
  height: 40px;
  border-radius: 60px;
}

.popup .content .set-item .tit {
  margin-top: 10px;
  color: black;
}

.popup .content .set-item .name {
  padding-left: 7px;
  color: #00a4ff;
}

.popup .content .set-item .name em {
  font-size: 14px;
  color: #999;
  margin-left: 5px;
}

.popup .content .set-item .cont {
  padding: 20px 0;
}

.popup .content .set-item .time {
  position: absolute;
  right: 10px;
  top: 25px;
}

.popup .content .set-item .answer-box {
  padding: 20px;
  margin-bottom: 20px;
  position: relative;
}

.popup .content .set-item .hf-answer {
  display: none;
  position: relative;
  padding: 10px 0;
  margin-bottom: 20px;
}

.popup .content .set-item .hf-answer .sub {
  border: solid 1px #00a4ff;
  background: #00a4ff;
  color: #fff;
}

.popup .content .set-item .hf-answer span {
  cursor: pointer;
}

.popup .content .set-item .but-item {
  position: absolute;
  right: 0px;
  bottom: -20px;
}

.popup .content .set-item .but-item span {
  margin: 0 10px;
  border: solid 1px #999;
  padding: 4px 10px;
  border-radius: 3px;
}

.popup .content .set-item .submit-ans {
  border: none;
  cursor: pointer;
  background: #00a4ff;
  position: relative;
  padding: 4px 30px;
  border-radius: 4px;
  float: right;
  bottom: -10px;
  color: #fff;
}

.popup .content .set-item .our-answer {
  position: absolute;
  right: 10px;
  top: 20px;
}

.popup .content .set-item .our-answer span {
  margin-left: 10px;
}

.popup .content .set-item .operation {
  position: relative;
}

.popup .content .set-item .operation .oper-box {
  position: absolute;
  right: 0px;
  top: 0px;
}

.popup .content .set-item .operation .oper-box i {
  position: relative;
  right: 5px;
  top: 2px;
}

.popup .content .set-item .operation .oper-box span {
  padding: 10px;
}

.learing-course {
  height: 100%;
}

.learing-course p {
  margin: 0;
}
